A Method of Estimation of Gross Yield of Douglas-Fir
Abstract:Estimates were developed for gross basal area growth rate and gross cubic volume growth rate for Pseudotsuga menziesii (Mirb.) Franco, based on a combination of existing permanent plot data and new data from temporary plots. Gross growth rates appeared to be related to stand density. Gross yield was estimated as the integral of the rate equation; the values obtained were somewhat higher than previous estimates for the species. The temporary plot procedures used appear to give results comparable to those obtained from permanent plots. Some possible modifications and extensions of the methods are discussed.
Document Type: Journal Article
Affiliations: Mensurationist, Pacific Northwest Forest and Range Experiment Station, Forest Service, U. S. Department of Agriculture, Portland, Oregon
Publication date: March 1, 1967
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